Sipper cap



FIG. 1 is a top perspective view of the sipper cap;

FIG. 2 is a bottom perspective view of the sipper cap;

FIG. 3 is a top plan view of the sipper cap;

FIG. 4 is a bottom plan view of the sipper cap;

FIG. 5 is a front elevational view of the sipper cap;

FIG. 6 is a rear elevational view of the sipper cap;

FIG. 7 is one side elevational view of the sipper cap; and,

FIG. 8 is another side elevational view of the sipper cap.

I claim the ornamental design of a sipper cap, as shown and described.